Master Thesis - Gallium Nitride MOSFET DC-DC converter

Job Description

Date: Sep 18, 2019

Do you want to do your thesis with us in Göteborg? 

 

Would you like the chance to do your thesis together with one of the world’s leading technology companies? We are on a quest to enable communication for everyone and everything and we believe that we do that by being as innovative as possible. If you want to help us to be even more innovative – then you are on the right track! 

 

We want you to become a part of a truly global company working across borders in 180 countries, offering a diverse, performance-driven culture & an innovative & engaging environment where employees enhance their potential every day. Come and learn and grow with us at Ericsson. 

 

Introduction

 

Board Power Design at Lindholmen is responsible for research, development and maintenance of Board Power solutions to most of the Ericsson´s Product Portfolio. We are a part of the Ericsson’s global design organization and engaged in developing products for the present and future mobile networks. At our site in Gothenburg we are five power design sections forming a competence center with responsibility to provide power solutions to the Ericsson organization.

 

Goal with Master thesis

 

Looking at the datasheets, Gallium Nitride (GaN) MOSFETs has overtaken silicon (Si) MOSFETs as the better alternative for switching devices for DCDC converters. Whether it is high frequency capability or low conduction losses, GaN MOSFETs has the edge when comparing similar package sizes. However, the datasheet doesn’t tell the whole story. This Master Thesis shall compare an existing Ericsson developed Si MOSFET based DCDC converter with a GaN based DCDC converter. The GaN based DCDC converter shall be developed in this Master Thesis.

 

Master Thesis in short

 

Literature study, with GaN and its drawbacks in focus.

Develop a GaN MOSFET based DCDC converter with a potential to replace an Ericsson developed Si based converter.

Perform comparative tests on GaN and Si converters.

Perform robustness and quality tests

 

Working methods

 

Theoretical analysis, literature study, design and evaluation of hardware

 

Qualification

 

Education: Masters within Electrical engineering, Physics engineering or similar

Basic knowledge of Switched Mode power supplies and semiconductor devices

English language skills (fluent both in written and verbal communication)

Suitable for 1 or 2 students

 

Application 

 

If you feel interested, please send in your application as soon as possible. The start date can be adjusted to both your and the business needs – the intention is to start in January 2020.

 

While applying please attach your updated CV, current grades and cover letter written in English into one document (under CV field in the application tool) and clearly define your technical knowledge.

 

If you have any additional questions, please contact our Recruiter Elzbieta Penpeska at elzbieta.penpeska@ericsson.com

 

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Primary country and city: Sweden (SE) || || Göteborg || Stud&YP

Req ID: 295005